Answer:
a) Anabolic pathways
Explanation:
The metabolic pathways that form complex biomolecules from simpler elements are called anabolic pathways. Anabolic pathways are mostly endergonic, that is, they require an input of energy.
For example, the synthesis of glucose (C6H12O6) from simpler CO2 and H2O in the presence of sunlight during photosynthesis. Here, complex glucose molecules are formed from simpler elements such as carbon dioxide and water. Sunlight serves as a source of energy for photosynthesis.
Ribosomal RNA is made in the centre of the nucleus, the nucleolus. It is a component that makes up the ribosomes along with other specific proteins.
Double-stranded RNA-mediated interference (RNAi) is a simple and rapid method of silencing gene expression in a range of organisms. The silencing of a gene is a consequence of degradation of RNA into short RNAs that activate ribonucleases to target homologous mRNA.
